Standard and Customized Alloplastic Facial Implants Refining Orthognathic Surgery: Outcome Evaluation

Cranio-Maxillo-Facial Reconstruction with Polyetheretherketone Patient-Specific Implants: Aesthetic and Functional Outcomes

BACKGROUND

Reconstructing cranio-maxillo-facial defects presents significant challenges. This study evaluates the results of polyetheretherketone patient-specific implants (PEEK PSIs) in primary and secondary cranio-maxillo-facial reconstructions, with a focus on aesthetic and functional outcomes and long-term complications.

METHODS

From October 2009 to February 2023, 45 patients underwent cranio-maxillo-facial reconstructions with PSIs. Patients aged 18 years or older, with a minimum follow-up period of 12 months, were included. The morpho-functional outcome was evaluated through a modified Katsuragy Scale, the Visual Analogue Scale (VAS) for pain, and four FACE-Q|Aesthetics© scales.

RESULTS

In total, 44 PSIs were placed in 37 patients (51.3% males; mean age 45.1 years). The main cause of the defect was the resection of a tumor (55.4%). Mean follow-up was 78.6 months. Clinical evaluations showed an improvement in the postoperative period both in patient's and surgeon's scores (p: 0.01 and p: 0.002, respectively). Subgroup analysis confirmed a significant improvement in patients undergoing cranioplasty (p = 0.02) and mandible reconstruction (p = 0.03). No cases of prosthesis dislocation, rupture, or long-term infection were recorded.

CONCLUSIONS

PEEK PSIs offer significant advantages in craniofacial reconstructions. Despite challenges in predicting soft tissue adaptation, overall patient satisfaction was high with no long-term complications. Future improvements should focus on predicting and enhancing soft tissue adaptations.

Emerging Trends in Virtual Surgical Planning for Orthognathic Surgery: A Global Overview of Research and Publication Patterns

PURPOSE

Anticipating trends and pursuing innovative ideas are imperative for the advancement of science. The objective of this study was to conduct a bibliometric analysis of 3-dimensional virtual simulation in orthognathic surgery, explore its implications for clinical practice, and identify future publication trends through digital tools.

METHODS

This study employed a retrospective bibliometric analysis using data obtained from the Web of Science database. The search strategy focused on articles related to orthognathic surgery and virtual simulation techniques. RStudio and bibliometrix tools were used to data mining. The independent variables retrieved from digital analysis were the emerging themes related to virtual planning in orthognathic surgery. The trends that we identified were facial esthetics, digital workflow, personalized treatments, and complex cases. The primary outcome variable was the number of publications dedicated to virtual simulation in orthognathic surgery, along with secondary outcomes such as citation rates, language of publication, country of origin, institutional affiliations, and emerging research themes. Covariates included variables related to publication characteristics, author affiliations, and geographic distribution of publications. Publication analyses over time involved descriptive statistics, regression analysis, Pearson correlation tests, and graphical representation techniques. Statistical significance was set at a 95% confidence interval (P value < .05).

RESULTS

A comprehensive analysis of 987 articles reveals the impact of included authors, with a mean h-index of 62 (SD = 18.4). The analysis further illuminates a discernible upward trend in publications on this subject, showcasing a linear pattern with a notable R2 value of 0.88 (P = .021). English remains the predominant language of publication, accounting for 97.97% of articles, while contributions hailed from a diverse spectrum of 56 countries. Interestingly, a moderate correlation emerges between publication numbers and gross domestic product per capita (r = 0.30, P = .044) and total area (r = 0.30, P = .032), whereas a more substantial correlation is evident with total population (r = 0.61, P = .034). Notably, the most cited article amassed 254 citations. Furthermore, a Pearson correlation coefficient of 0.97 underscores the correlation between citation density and the year of publication.

CONCLUSION

The bibliometric indicators provided insights for evaluating research productivity and the quality of research output. Emerging themes included facial esthetics, 3-dimensional printing, and the utilization of custom-made templates and implants. This study holds relevance for maxillofacial surgeons, academics, and researchers alike.

Assessment of deep plane facelift in facial feminization surgery: A prospective pilot study

Facial feminization surgery (FFS) is often the first procedure requested by patients wishing to undergo gender-affirming surgery. This study aims to evaluate the applicability and effectiveness of deep plane facelifts in FFS. The authors conducted a prospective study that included patients who requested a deep plane facelift as a standalone procedure to achieve a more feminine facial appearance as the only procedure of FFS. These patients underwent deep plane facelifts to achieve a more feminine oval face shape and increased tissue projection of the zygomatic-malar region. To assess the effectiveness of the procedure and patient satisfaction, the Face-Q scales, Face and Neck lift Objective Photo-Numerical Assessment Scale, the Satisfaction With Life Scale, and the Subjective Happiness Scale were applied preoperatively and one year after surgery. Thirty-six patients were included in the study. A statistically significant difference (p < 0.005) was observed between pre and postoperative scores. The repositioning of the malar fat pads increased the malar volume, providing a more oval overall shape of the face, which is typically feminine. No major complications were observed. Despite our encouraging results, new studies with a larger sample of patients are needed to support the benefits of the deep plane facelift as part of FFS to elevate this technique from an ancillary to a routine procedure for patients undergoing gender affirmation surgery.

Alloplastic malar implants in aesthetic facial surgery

PURPOSE OF REVIEW

To examine the recent literature on aesthetic alloplastic malar implants.

RECENT FINDINGS

Alloplastic implantation is heavily favored in the oromaxillofacial literature. Recent articles have examined porous polyethylene and silicone implantation. Overall patient satisfaction is high and complications are low. Outcomes are likely comparable with alternative modalities to rejuvenate the face in the appropriate hands.

SUMMARY

Alloplastic implantation continues to be a reliable tool for malar augmentation.